Grill brush



FIG. 1 is perspective view showing the top, front and right side of a grill brush embodying my new design, the portion in broken lines forming no part of the inventive design;

FIG. 2 is an enlarged right side elevational view thereof, the left side being a mirror image thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is an enlarged, front elevational view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a grill brush, as shown and described. 